Alzheimer’s disease (AD) is a neurodegenerative condition in which beta-amyloid protein accumulates into plaques, and tau protein forms neurofibrillary tangles. In the past, our laboratory has shown that repeated inflammatory events increase beta-amyloid in the hippocampus of male C57BL6/J mice. We sought to determine the effect of a second exposure to the bacterial mimetic lipopolysaccharide (LPS) on beta amyloid accumulation. An initial round of seven, once daily LPS or sterile saline injections, was administered to male C57BL6/J adult mice. Fourteen days after the last injection, a second round of LPS or saline injections was given, followed by tissue collection and quantification of beta-amyloid levels in the hippocampus. The results showed that animals injected with two rounds of LPS had significantly lower levels of beta-amyloid accumulation than those animals injected with just a single round of LPS, although both groups had significantly higher levels of beta-amyloid than the saline control animals. These results suggest a reduced inflammatory response following a secondary exposure to LPS. More specifically, animals exposed to LPS for a second time showed significantly less central and peripheral inflammation four hours after LPS administration than animals with no prior exposure. In addition, increased levels of IgM and IgG were discovered in the mice with prior LPS exposure. This could indicate possible antibody production against LPS or beta-amyloid rather than tolerance of the LPS as a mechanism for the reduced inflammatory response. In order to establish whether this results in a life-long effect, we are currently exploring the impact of LPS administration in old age for mice who were exposed to LPS earlier in life.

With the increasing student population trend at TCU, parking on campus is equally increasing
in difficulty. Due to the limited campus space, expanding parking availability is not a feasible
solution. Spark is a smart parking system that monitors the status of each space in parking lots,
indicating the space’s occupancy status on an aerial “Google Maps” view of the parking lot in a
smartphone application and, potentially, a website. The application could be linked to the TCU
Single-Sign-On for increased security and to make it easier for TCU students, faculty, and staff
to save their parking preferences. Spark can measure the fill rate of individual lots, recommend
a time-to-leave to procure a parking spot, and even provide update notifications on the status
of the user’s preferred lots.

Using the finite element method as a numerical approximation in solving for eigenvalues of the hyperbolic Laplacian, this research investigates the estimates of the first two eigenvalues with Dirichlet and Neumann boundary conditions on bounded domains in the upper half plane. Examples of finite element code using Matlab are presented to illustrate how to obtain these approximations for hyperbolic polygons. These values can further be used to shed light on the Selberg and Fundamental Gap conjectures.

In the past, Personality Psychologists have commonly applied clustering techniques on questionnaire data to analyze personality structure. The purpose of this research is to determine if techniques from topological data analysis can provide a greater understanding of personality. Specifically, persistent homology was used to determine clusters topologically and analyze the ‘shape’ of the data. Previous work we have done focused on seeing how persistent homology can provide insight on identifying the key (most persistent) clusters in the data. New analysis looks to see how the Big 5 Personality Factors cluster together as a function of age.

Background: To replace milk fats and eggs commonly found in ice cream, vegan varieties substitute with vegetable fats and/or pureed fruits. Vegan ingredient substitutions for ice cream must contain similar structural components to milk fat to preserve the expected texture/mouthfeel of the product. The purposes of this study were 1) to measure university students’ preferences and sensory ratings of vegan ice cream substitutions and 2) to identify which ingredients act as the best replacements.

Methods: 54 students enrolled in one of two TCU Nutritional Sciences (NTDT) courses participated in this single-blind, cross-sectional study. Subjects completed sensory evaluation of three homemade vegan ice creams containing different structural/flavor components. Sample A included coffee, cashews, and coconut cream; B used coconut cream and dates, and C contained coconut milk. Evaluations took place on two separate occasions in the NTDT Laboratory Kitchens. Flavor, sweetness, texture, mouthfeel, eye appeal, color, and overall rating of vegan ingredient substitutions for ice cream recipes were assessed. Sensory criteria responses were analyzed using SPSS XIX. Frequency distributions, ANOVAs, correlations, and descriptive statistics were determined to meet study objectives (p≤0.05). Protocol was approved by the TCU IRB.

Results: 53% of participants preferred the flavor of sample A, 42% of participants reported that sample B was the preferred flavor, and sample C received the lowest overall acceptability rating, with 73% of the participants disliking the flavor. More than 50% of participants stated sample A was most similar to traditionally-prepared non-vegan ice cream, and 78% of participants stated that they would consume these ice creams outside of the study.

Conclusions: Acceptable vegan ice cream fat substitutes are available. Cashew, coconut cream, dates, and coffee contributed to the rich flavors, creamy textures, and overall desirable sensory qualities in samples A and B. Coconut milk, utilized in sample C, contributed to an undesirable and unacceptable crystallized texture.

Background: Research indicates individuals who follow plant-based diets make healthier food choices and have less chronic disease than those consuming the Standard American Diet. It is hypothesized that Texas Christian University (TCU) students have limited knowledge and/or exposure to vegan/plant-based lifestyles and diets. The purpose of this study was to determine whether knowledge level and attitudes/beliefs of vegan/plant-based diets/lifestyle changed with exposure and newly-gained knowledge in a semester-long three-hour course.

Methods: Subjects included 23 junior/senior multidisciplinary TCU students (56%/female; 44%/male) enrolled in a course about plant-based diets and lifestyles. Students completed a pre-assessment questionnaire on the first day of class before exposure to any content regarding vegan/plant-based diets and lifestyles. Students completed a post-assessment questionnaire at semester end to ascertain if changes in attitudes/knowledge/beliefs regarding vegan/plant-based diets and lifestyles changed over time with exposure and newly-gained subject knowledge in the course. Data was analyzed using SPSS (p<0.05).

Results: Prior to starting the course, 13% of students reported they were vegetarians, and 83% typically consumed animal protein in their diets (p=0.01); more students in health-related disciplines noted having friends/family members who followed vegan diets (p=0.01). Pre-assessment results showed that female students were more knowledgeable than male students about plant-based diets/veganism (p=0.01); whereas, post-assessment knowledge scores showed no differences among gender. Overall, post-assessment scores improved for all students in the following categories: reasons why people choose veganism, acceptable foods for vegans, nutrients at risk for vegans, availability of vegan ready-to-eat foods/grocery store and restaurant meals, and risk for chronic disease of vegans vs. people who consume animal products (p=0.01).

Conclusions: Students majoring in the sciences and nursing/health sciences possessed greater knowledge about vegan/plant-based diets/lifestyles than their counterparts majoring in other subjects. Although level of prior knowledge varied among all students, exposure to the topic through a vegan/plant-based studies course increased knowledge of participants.

Background:
Peanut butter is an all-American staple in nine out of 10 households. It’s estimated that each U.S. youth consumes an average of 1,500 peanut butter sandwiches by the time he/she graduates from high school. Although, the popularity of peanut butter alternatives such as tree nuts/seed butters has grown in recent years due to their rich source of nutrients, peanut butter continues to be the “nut butter” of choice for most people. This may be due to lack of knowledge about the health benefits of different nut/seed butters and/or lack of exposure to these products.

Methods:
The purpose of this study was to examine if taste-testing and increased awareness about the health benefits of tree nut/seed butters would influence their consumption among university students. 52 students enrolled in a multi-disciplinary introductory nutrition course participated in this single-blind, cross-sectional study. Participants completed a pre-study questionnaire identifying key nutritional benefits of peanut and alternative tree nuts/seeds butters and typical consumption of each. Following education about the nutrient content of peanuts compared to cashews, almonds, and sunflower seeds, participants taste-tested and evaluated a sample butter of each and completed a post-study questionnaire. Study procedures were approved by university IRB, and participants responses and sensory rankings were analyzed to meet study objectives (SPSS; p<0.05).

Results:
Significant improvement in pre and post-study knowledge of nutrient content in nut/seed butters was noted (p=0.01). Sensory evaluation showed that preferences for peanut butter were highest among participants, followed by almond butter and cashew butter. Sunflower seed butter was least preferred (p=0.01). Taste, color, and texture/mouthfeel sensory rankings correlated with overall acceptability for each sample (p=0.05). Following sensory evaluation, preferences for consuming almond butter increased by 38% compared to pre-tasting responses (p=0.01).

Conclusions:
Education and sensory evaluation are both important strategies for enhancing awareness of health benefits and acceptability of peanut butter alternatives.

Background: Among the many benefits associated with the consumption of probiotics, modulation of the immune system has recently received the most attention. Previously, researchers and scientists thought that the use of probiotics only improved the gastrointestinal tract, thereby aiding digestion. However, there is now evidence to support that intake of probiotics is effective in the prevention and/or management of many gastrointestinal diseases plus modulating immune functions in a person with normal immunological status and microbiota.
Methods: An online survey regarding knowledge of foods containing probiotics, consumption of these foods, frequency of probiotic supplementation, and recent illness was developed to determine the relationship between probiotic intake and immune health among college students. Researchers recruited Texas Christian University students through e-mail and social media. Once the target number of participants (>150) responded to the survey, data was analyzed using SPSS.
Results: Upon surveying participants (N=157), 58% (n=91) of respondents reported that they did not take a probiotic supplement, while 19.8% (n=31) reported taking a supplement every day or ≥3-4 times/week. There was a strong correlation between those who reported frequent probiotic supplementation and lower incidence of strep throat (p<0.01), lower incidence of nausea and vomiting (p<0.01), and lower incidence of constipation (p<0.05). There was also a correlation between the consumption of certain foods containing probiotics, yogurt specifically, and illness frequency, notably, lower incidence of fever (p<0.01) and cold (p<0.05).
Conclusions: There is a significant correlation between the consumption of probiotic supplements and positive effects with certain illnesses, but some foods containing probiotics show opposite or negligible results. For more conclusive results, further research should be conducted with controlled variables to determine the relationship between illness and intake of probiotic supplements versus probiotic-containing foods.

Background: Research indicates Millennials are more concerned about having healthy eating habits than following fad diets, and they exercise more than their Baby Boomer counterparts. The purposes of this study were 1) to determine reasons university students follow fad diets, and 2) to determine other methods students utilize for weight management.
Methods: In this un-blinded, randomized trial approved by TCU IRB, participants completed an online research questionnaire after providing informed consent. Population included 236 TCU male and female students, 18-22 years old. Analyses assessed students’ history of fad dieting and outcomes, perceived health status based on body weight and image, eating and exercise habits, and incidence of lifestyle practices such as smoking and alcohol use. Data was analyzed using SPSS (p<0.05). Frequency distributions and correlations were analyzed for trends in health maintenance behaviors.
Results: Participants self-identified as 76% females, 85% white, 6% Hispanic, and 4% other ethnicity. Only 32% of participants had followed a fad diet (p=0.01). Participants who followed fad diets included 30% Paleolithic®, 23% Gluten-Free®, 20% Weight Watchers®, and 14% Atkins®. Of those who followed the respective diets, 58% did not achieve desired results and reported feeling tired, had no change in health status, experienced temporary weight loss, and always felt hungry, and 56% of participants answered “no” when asked if fad diets work. Of those who followed a fad diet, 40% would not follow one again. Results also show a strong relationship between females and healthy eating habits, pressure to be a certain weight, and perceiving themselves to be a normal weight (p=0.01). Finally, weight loss behavior results show that 97% of participants exercise, while only 57% consciously eat less, and 55% count calories (p=0.01).
Conclusions: University students who followed fad diets experienced temporary or adverse results. Exercise was preferred rather than dieting to maintain weight.

Background: Up to 40% of food produced in America is wasted each year. Meanwhile over 42 million Americans are food insecure. The purposes of this study were to 1) identify contributing factors to local restaurant food waste, 2) describe barriers to restaurant food donations, and 3) describe barriers to donation acceptance by shelter employees.
Methods: Two electronic surveys were distributed to either local restaurant managers/owners or to employees involved in food donation acceptance in local shelters/kitchens following phone calls and/or personal visits by researchers to facilities. Data were coded into and analyzed using SPSS.
Results: There was a 17% (N=12/72) and 100% (N=14/14) response rate for restaurants and shelters requested to participate, respectively. While only 16% (N=2) of restaurant survey respondents (RSR) were concerned about food waste in their establishments, all RSR (N=12) agreed that reducing food waste in their facilities was important. Over 83% (N=10) reported having successful food waste prevention measures in their restaurants. There was a positive correlation with report of presence of prevention measures and knowledge of the Good Samaritan Act (r=.67, p<0.05). Approximately 42% (N=5) of RSR reported they would be interested in connecting with local shelters to donate food and also agreed that liability is a barrier to safe food donations.  Among shelter respondents, 81% (N=9) agreed that their facilities would benefit from excess restaurant food donations.
Conclusion: Although all RSR agreed that food waste prevention measures were important, the majority were not concerned about food waste in their facilities. Due to the overall poor response rates among restaurant owners/managers, the RSR in this survey may represent a segment that were more interested in food waste and more likely to respond to the survey.  The majority of respondents of both surveys agreed that partnering with restaurants and shelters for safe excess food donation was desirable.
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Funding Source: None

In this experiment we take the differential equation model from Heldt 2012 for the viral life cycle and apply a stochastic algorithm in order to simulate random events on a molecular level. We then introduce a known mechanism by which to mutate the produced virus particles and attempt to understand the relationship between surface proteins and these random mutations. This work will shed light on the efficacy of particular antiviral drugs that act on the binding of surface proteins to the cell membrane.

Respiratory syncytial virus (RSV) is an extremely common viral respiratory infection that currently has no vaccine or treatment. One of the issues in developing a treatment has been that immune system responses in both humans and rats vary in their susceptibility to RSV across different age groups. In this study, we use a mathematical model to quantify the viral kinetics of RSV and analyze its relationship to age. After fitting the model to experimental data, six parameter values were determined and used to calculate the eclipse phase length, infection phase length, basic reproductive number, and infecting time. These values were compared by age and collection site. After running several statistical tests, there was no major trend with the parameter values in relation to either age or collection site. This result provides the foundations for further studies to explore how viral models can better represent RSV and understand the immune response in general.

Galaxies are not alone in space; often, they have neighboring galaxies with which they gravitationally interact. These interactions foster diverse characteristics, such as size, morphology, and color. This project studies the properties of galaxies in the context of their neighbors and environment. More specifically, I examine how the proximity between galaxies affects their evolution. I do this by exploring two samples: 1) galaxy pairs within a few galactic diameters of each other and 2) isolated galaxies separated from the next nearest galaxy by more than ~450,000 light years. Using existing Mapping Nearby Galaxies at Apache Point Observatory observations, part of the Sloan Digital Sky Survey IV, I determine the various types of ionization conditions present at different radii throughout each galaxy. Through these efforts, I explore which processes promote and hinder star formation within galaxies.

Graphene is a promising material, due to its various inherent properties that will lead to better, smaller, faster, or flexible electronics. Graphene doesn’t exhibit optical emission, limiting its potential use in optoelectronics. However, graphene’s functional derivative Graphene Oxide (GO) maintains many of graphene’s properties and exhibits optical fluorescence emission in the visible/near-infrared, which makes it a candidate for novel applications such as optoelectronic transistors, light emitting diodes (LEDs), and solar cells. Therefore, finding a way to alter optical and electronic properties of GO will lead to more versatility and control among the aforementioned applications.
In this work, we studied the potential use of GO for microelectronic applications by observing the fluorescence of this material under the electric field. A dried GO/PVP film was subject up to 1.6 V/µm in between transparent conductive ITO electrodes resulting in observable quenching of fluorescence emission as the field was applied. The emission was further partially restored at 0 field. Additionally, microscopic flakes of graphene oxide deposited onto interdigitated 10 µm electrodes were subject to 100V/µm with no breakdown current detected. The fluorescence of individual flakes, observed via visible fluorescence microscopy, experienced substantial field-dependent quenching. In aqueous suspensions GO flakes exhibited electrophoretic migration signifying of charge separation. As a result of this work we suggest the potential of varying electronic and optical properties of graphene oxide via the electric field for the advancement and control over its optoelectronic device applications.

Within the Large Magellanic Cloud (LMC) galaxy, there are huge gaseous outflows that originated from violent supernovae explosions within this galaxy. Observing this outflow that is being kicked out from the LMC reveals that there is ionized gas present, which can be trace by using Ha emission. Using observations from the Wisconsin Ha Mapper (WHAM) in Chile, we are mapping out the Ha emission that is being kicked out of the LMC. In this project, I am removing the imprint of the Earth’s atmosphere in order to isolate the gas cloud. This will be used to determine how much gas is being thrown out of the galaxy. The more gas the galaxy loses, the more it would not be able to make stars in the future.

Respiratory tract infections are easily among the most diagnosed illnesses in modern medicine, especially involving infants and the elderly. Lower respiratory tract infections (LRTIs) are especially dangerous, often capable of producing lasting respiratory problems, increased hospitalization, and life-threatening illness. Our research is targeted towards uncovering a possible mechanism behind the spreading of LRTIs, in hopes of illuminating the connection between the diffusion of a given virus and the speed of mucous transfer within the respiratory tract. This project more specifically focuses on a system of nonlinear ordinary and partial differential equations which simulate the diffusion and advection driven dynamics of an infected respiratory system. With a more realistic spatiotemporal approach, we hope to find possible relationships between given rates of advection and diffusion, and the depth and duration of infection; a potential framework for understanding and preventing an otherwise refractory human affliction.

The current research examined childhood environmental factors driving the development of an unpredictability schema (a mindset about the world and people in it as unpredictable) and how maintaining such a cognitive schema impacts body awareness and eating in the absence of hunger. In Study 1, low childhood SES, parenting inconsistency, and poor childhood neighborhood quality predicted development of an unpredictability schema, which predicted lower body awareness. In Study 2, participants with an unpredictability schema had lower body awareness, less mindful eating, and more self-reported eating in the absence of hunger. In Study 3, this pattern was conceptually replicated in a laboratory eating task demonstrating that participants with an unpredictability schema had lower body awareness, which predicted more eating in the absence of hunger. Together, these results suggest that development of an unpredictability schema may be an important predictor of low body awareness and eating in the absence of hunger. Although these outcomes may have historically promoted survival in unpredictable environments, they may contribute to obesity in contemporary food-rich environments.

Alternative seating is being used in classrooms around the nation, but its efficacy, especially for children that are not typically developing, has not been well-studied. This study looks at the effects of four different types of alternative seating on focus, problem solving, and feelings of calm and attentiveness as compared to a control condition. A chair was designed specifically for this study, in an attempt to better serve the needs of children with postural disorders and learning disabilities, as past research has shown that these children do not perform as well on therapy balls (Bagatell, Mirigliani, Patterson, Reyes, and Test, 2010). Two versions of this new chair were included in the study, as well as a normal chair with a weighted blanket, and a therapy ball. The participants were between five and nine years old and were asked to complete some executive functioning (EF) tasks and answer some questions about how they felt, while being videotaped so that observational data on their on-task behavior could be coded later. Meanwhile, their parents completed a questionnaire about their child, including some questions about any diagnoses the child might have. The data has not been fully analyzed yet, but I hypothesize that children with learning disabilities and postural issues will do much better on the EF tasks in the new chairs or with the weighted blanket than in the therapy ball or control condition. I anticipate that typically developing children will do better in all of the alternative seating options than in the control. Furthermore, I do not anticipate that one alternative seating option will be significantly better for every child. Rather, I hypothesize that results will vary from child to child, suggesting that each classroom should have a variety of alternative seating options, so that children can find the one that works best for them.

Alzheimer’s disease (AD) is a neurodegenerative disease currently affecting 5.5 million Americans. Moreover, the disease prevalence is expected to rise to 16 million by 2050. Characteristic AD pathology includes neurofibrillary tangles of tau protein and amyloid-beta (Aβ) plaques, which correspond with a deterioration of memory and cognition in patients afflicted with AD. Aβ is a peptide resulting from cleavage of amyloid precursor protein (APP) primarily present within neuronal cell membranes. The Aβ peptide aggregates into Aβ plaques throughout the AD brain, but a brain structure impacted heavily and early on in the disease progression is the hippocampus. As mice do not naturally form plaques, our lab utilizes the 5xFAD transgenic mouse, a model of familial AD, wherein genetic mutations result in plaques and allow us to study this human AD pathology in mice. Previous research from our lab has shown that 5xFAD mice that are chronically stressed through social isolation, as opposed to typical group housing, have an increased number of hippocampal Aβ plaques. The goal of the current project was to determine whether the stress-induced increase in Aβ plaques could be prevented through exposure to physical exercise alone, or to exercise and an enriched environment throughout the period of isolation. Two-month-old mice were housed in isolation, housed in isolation with an exercise wheel, or housed in isolation with an exercise wheel and an enriched environment. After 3 months, cognition was assessed through contextual fear conditioning, and brains were collected for hippocampal Aβ plaque counts.

Terror management research has shown that, following mortality salience (MS), death-thought accessibility (DTA) and distal worldview defenses appear after a delay. However, to date, delay times for DTA and worldview defense activation have differed, with longer periods being better. While the time course is theoretically understood (Arndt, Greenberg, & Cook, 2002), the optimal time to assess DTA and worldview defense seem to differ between studies. Two experiments varied the time following MS to see when DTA (Study 1) and worldview defense (Study 2) should ideally be assessed. Participants, in both studies, were assigned to either an MS or control prime and then to one of four delay conditions (0 min, 5 min, 10 min, & 15 min). In Study 1, DTA was assessed with a lexical decision task and demonstrated strongest DTA effects at 10 min. In Study 2, worldview defense was assessed using the Moral Transgression Scale, which demonstrated that worldview defense was strongest after at 15 min. The current research is important for better understanding how to appropriately conduct TMT research, as well as clarifying potential errors with other studies.

How do people judge the morality of groups who do negative behaviors for an admirable cause? For example, some participants responded to groups of people who disrupt abortion clinics, in order to save unborn children. In the current study, we tried to answer this question through the lens of Attitude Representation Theory (Lord & Lepper, 1999) and audience tuning (Higgins & Rholes, 1978). Previous research (Lu, 2015) has also shown that using an ART approach, self-radicalization can occur, such that participants can persuade themselves to adopt more extreme moral judgments than before. In this study, participants were presented with a fictitious scenario and then told to either write a letter to their best friend about why their friend should not join that group (embellishment) or about campus architecture (control group). Based on previous research, we hypothesized that those who write to their best friend will later rate the actions of a group as more immoral and want to see the group be punished more. The results provided support for both of our hypotheses since participants writing to their best friend demonstrated self-radicalization. The results suggest that moral judgments can be malleable based on context and circumstance. Broader implications will also be discussed.

Title:
The moderation of terror management effects in Broad Autism Phenotype (BAP) individuals

Authors:
Paulina Mozo, Kathryn England, Elidia Avelar, Caroline Pope, Nathania Davis, Arielle Cenin, & Cathy R. Cox

Abstract:
The Broad Autism Phenotype (BAP; Hurley, Losh, Parlier, Reznick, & Piven, 2007) describes individuals who show characteristics similar to those with autism spectrum disorder. For example, BAP individuals show aloof personality (e.g., a lack of interest in social interaction), rigid personality (e.g., little interest in change or difficulty with change) and pragmatic language problems (e.g., inability to engage in fluid, reciprocal conversation). According to terror management theory (TMT; Greenberg, Pyszczynski, & Solomon, 1986) people are motivated to mitigate the potential for anxiety inherent in the awareness of death so that these concerns do not bloom into debilitating terror. Individuals may do so through the use of three psychological defense mechanisms that together create an anxiety-buffering system: (a) cultural worldviews, (b) self-esteem, and (c) close relationships. Additionally, individuals show a greater accessibility of death-related thoughts following disruptions to their anxiety-buffering defense system (i.e., the DTA hypothesis; Hayes, Schimel, Arndt, & Faucher, 2010). Prior research has shown that individuals high in BAP rigidity demonstrate heightened death concerns and greater defensiveness following a mortality salience (MS) manipulation (Arrowood, Cox, & Ekas, 2016). Following this line of work, the current research aimed to examine the moderating effects of a sense of control on death-thought accessibility (DTA) in BAP individuals. To test this, participants were first asked to complete the BAPQ (Hurley et al., 2007) to assess the traits of aloofness, rigidity, and pragmatic language problems. Following previous research (e.g., Landau et al., 2011; Maxfield et al., 2007; Schimel, Greenberg, & Martens, 2003), participants completed a word search puzzle as the mortality salience (MS) manipulation. Specifically, in the death condition, seven death-related words (i.e., death, dead, decay, die, funeral, burial, & corpse) were embedded as they searched for neutral target words. Then, participants were randomly assigned to a control-prime writing task (i.e., full control, no control, vs. neutral). Finally, all participants completed the word-fragment completion task to measure DTA (Greenberg et al., 1986). The task presented 25 word fragments, 6 of which could be completed with a neutral or death-related word (e.g., COFF_ _ could be completed as either COFFIN or COFFEE), and DTA score was calculated as the total number of death-related word completions. A hierarchical multiple regression was performed to examine the effects of mortality salience, control, and BAP on death-thought accessibility. The results showed a significant three-way interaction between MS, control, and BAP rigidity on DTA scores. Specifically, this study provided evidence that priming individuals high in BAP rigidity with a sense of control buffered the effects of mortality salience. Given that parents of children with ASD experience greater accessibility of death-related thoughts, as compared to parents of typically developing children (Cox, Eaton, Ekas, & Van Enkevort, 2015), the current work provides a potential solution to buffer the effects of mortality salience in this population.

Human speech production and grammatical organization of language is controlled primarily by the left hemisphere of the brain. Broca’s area is a specialized area in the left frontal cortex that is responsible for our ability to construct grammatically correct sentences. Songbirds are studied as an animal model for understanding human language production. Our research sought to explore whether the neural control of birdsong syntax of the Bengalese finch is also lateralized; if so, the Bengalese finch would provide a good animal model to further study syntax generation in humans. To investigate this question, we recorded the birdsongs of 10 different Bengalese finches; then, the HVC (letters used as proper name) brain region, an area thought to control birdsong syntax, was lesioned in either the right hemisphere or the left hemisphere for each bird. Birdsong was then recorded for five months following the surgery. Song syllables were coded and analyzed to measure the syntactic structure of the song. The birdsongs were grouped into a right lesion group and a left lesion group, and they were compared based on three measures of song syntax; sequence stereotypy, sequence consistency, and sequence linearity were measured at each time point. HVC lesion initially disrupted song syntax, but song syntax recovered. There was no significant difference between the left and right lesion groups. When looking at individual time points, the right lesion group seemed to initially lose more syntactic control four days after surgery, but the group differences were non-significant. Overall, the two groups follow a similar trend of recovery. Our results suggest that the HVC control of Bengalese finch song syntax is not lateralized as it is in human speech. The recovery of song syntax following brain injury suggests that other areas of the brain contribute to the generation of syntactic structure of the Bengalese finch song.

Introduction: Parents of children with autism spectrum disorder (ASD) may experience high levels of stress and face numerous challenges. They also report more mental health problems than parents with typically developing children (Falk, Norris, & Quinn, 2014). In families with children with ASD, differences are found between well-being in mothers as compared to fathers. A recent review found that mothers of children with developmental disabilities, including ASD, reported a higher number of positive experiences than fathers (Kayfitz, Gragg, & Orr, 2010). A possible explanation for this is that fathers may underestimate the influence of outside factors that lead to positive experiences with their child. This could negatively impact the father’s well-being. As research on the fathers in families with children with ASD has expanded within recent years, it is crucial to understand the factors that influence the father’s well-being. The purpose of the current study is to examine child versus parent characteristics as predictors of depressive symptoms in fathers of children with ASD.

Method: Thirty-one fathers of a child with ASD completed an online survey. They completed measures of depressive symptoms (CESD), the broad autism phenotype (BAPQ), adult attachment anxiety and avoidance (ECR-R), child symptom severity (SCQ), child behavior problems (SDQ), work-family conflict, and attitudes about the role of fathers (ROFQ).

Results: To examine the impact of child and parent characteristics on depressive symptoms in fathers of children with ASD a series of correlations were first computed. The results revealed no significant relationship between depressive symptoms and work-family conflict or the child’s symptom severity, ps ≥ .055. However, there was a significant relationship between depressive symptoms in fathers and attachment anxiety, children’s behavior problems, BAP symptoms in the father, and the role of the father, ps ≤ .040. However, when followed up with a multiple regression model, only attachment anxiety, b = 7.89 (SE = 1.87), t = 4.22, p ≤ .001, and the role of the father, b = -.51 (SE = .22), t = 2.35, p = .028, were significant predictors of depressive symptoms.

Discussion: This study helps to identify predictors of well-being in fathers of children with ASD. Specifically, the more attachment anxiety a father reports, the higher his depressive symptoms. It may be necessary to re-frame his attachment representations in order to promote more positive psychological functioning. Fathers who reported that their role is critical to their child’s development reported less depressive symptoms. Fathers are generally less involved in their child with ASD’s treatment (Johnson & Simpson, 2013) and many parent-mediated interventions focus on mothers (Braunstein et al., 2013). Our findings suggest that emphasizing the importance of fathers as an active caregiver may help improve father well-being.

Introduction: Research suggests that when reminded of death, individuals cling to their beliefs to cope with the terror associated their inevitable mortality. According to other studies, intrinsic religiousness buffers against existential terror and reduces the need for other terror management defenses as these persons are able to rely on their internalized religious beliefs as a shield and their overall relationship with their divine figurehead (Vail et al., 2012). Other work suggests that a relationship with God can be described as an attachment bond, specifically that an anxious attachment to God is strongly correlated with an extrinsic religious orientation (Rowatt & Kirkpatrick, 2002). The purpose of this study is to examine the association between intrinsic religiosity and attachment to God. Specifically, we hypothesized that low intrinsic individuals would experience a more avoidant attachment to God following mortality salience. High intrinsic persons, however, would display the opposite trend.

Method: Participants consisted of 158 Christians recruited from a medium, private university. Participants were first given the intrinsic religiosity scale (Allport, 1967). In order to manipulate mortality salience, participants completed a neutral or death-related crossword puzzle (Landau, Kosloff, & Schmeichel, 2011). Finally, participants completed the attachment to God inventory to assess for anxious or avoidant attachments to God (Beck & McDonald, 2004).

Results: A moderated regression analysis found a significant interaction between mortality salience and intrinsic religiosity on avoidant attachment to God. More specifically, in the mortality salience condition, individuals with a low intrinsic orientation displayed a more avoidant attachment to God than high intrinsic persons. Additionally, low intrinsic individuals displayed a more avoidant attachment in the mortality salient condition than the control condition. No significant effects emerged for the anxious attachment variable.

Conclusion: The present results suggest that low intrinsic people are unable to rely on their religious beliefs following mortality salience. Specifically, because these individuals do not internalize their beliefs, they become a source of contention instead of an anxiety buffer following mortality salience. Additionally, these results build upon those by Jonas and Fischer (2006) by suggesting that high intrinsic persons are able to fully shield against mortality salience because they have a strong attachment to God.